25 entries under underground topic. ×

17
interred(verb, adjective, confined, imprisoned)
12
hidden(verb, adjective, show, obscure, secret)
12
inhumed(verb, adjective, entombed)
8
entombed(verb, adjective, interred)
5
sunken(adjective, depressed, hidden, covered)
3
covered(verb, adjective, secret, unknown, hidden)
3
subterranean(adjective, hidden, covered, depth)
2
clandestine(adjective, obscure, dark, secret, private)
2
stealthy(adjective, secret, hidden, clandestine)
1
below ground(adjective, hidden, covered)
1
dissembled(verb, secret, hidden, clandestine)
1
incog(secret, hidden, underhanded, covered)
1
incognito(secret, hidden, underhanded, covered)
1
subterrestrial(adjective, hidden, covered)
1
underfoot(adjective, hidden, covered)
0
furtive(secret, hidden, clandestine, underhanded)
0
hypogeal
0
hypogean
0
hypogeous
0
on the QT(expression, idiom, secret, hidden)
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APASmart Define. (2016). buried thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/buried/thesaurus/synonyms
ChicagoSmart Define. 2016. "buried thesaurus" https://smartdefine.org/buried/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, buried thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/buried/thesaurus/synonyms>.
MLASmart Define. "buried thesaurus" 3 April 2016. Web. 25 September 2026. <https://smartdefine.org/buried/thesaurus/synonyms>